While it is pretty easy to find a known work by author or title, identifying early works of detective fiction can be tricky. Only in recent years have libraries added subject and genre headings to catalog records for works of fiction. Follow these strategies for identifying works:
C19 is the most comprehensive index of 19th Century serials, but does not search the full text of periodicals. British Periodicals does search the full text of articles within journals, but lacks the detailed subject tagging that C19 has.
If C19 does not have full text of an article, the FindIt@MU links will appear and link you to online or print copies. If we have neither, it'll link you to ILL@MU. We should be able to get copies of things we don't have via interlibrary loan.
Some works originally published in serials may appear in anthologies or collected works. To find a short work published within a larger one, try searching in Google Books, the Hathi Trust Digital Library, or use the Short Story Index to locate stories within anthologies.
See also Index to Crime and Mystery Anthologies (Z2014.F4 C58 1991)
The following bibliographies indicate additional sources: